Meta Muse Spark
Meta Muse Spark is Meta's proprietary flagship large language model, marking a shift away from the fully open-weight Llama series toward a closed model developed under Meta's Superintelligence Labs. It launched in April 2026 with a 1.1 update in July 2026, while Meta separately released an open-weight sibling, Muse Glimmer, in August 2026.
Facts checked on against the sources listed at the end of this page.
- Pricing
- Pay as you goPaid from Priced per million tokens via API partners; check current provider pricing
- Open source
- NoProprietary
A good fit for
- Users of Meta's consumer products (Instagram, WhatsApp, Facebook) wanting AI features built into those apps
- Developers wanting Meta's current flagship model capability rather than the older, fully open Llama series
- Researching Meta's shift from fully open-weight models toward a mixed proprietary and open-weight strategy
Not a good fit for
- Developers who specifically want a fully open-weight model with unrestricted self-hosting, where Muse Glimmer or the older Llama series may be a better fit
- Projects needing certainty on long-term open licensing, given Meta's shift toward proprietary models
Meta Muse Spark pricing
Meta Muse Spark is accessible through Meta AI's consumer products with usage limits, and through API access from cloud partners priced per million tokens. Check current provider documentation for exact rates, since Meta's model access is typically distributed through partners rather than a single official pricing page.
Prices in USD, checked on 27 September 2026. Current prices on ai.meta.com.
Main features
- Flagship proprietary model
- Meta's top-tier model, developed under its Superintelligence Labs division.
- Consumer app integration
- Powers Meta AI across Instagram, WhatsApp and Facebook.
- Regular updates
- Received a 1.1 update in July 2026 following its April 2026 launch.
- Open-weight sibling
- Meta also offers Muse Glimmer, an open-weight model released alongside the proprietary Muse Spark line.
About Meta Muse Spark
Meta Muse Spark is Meta's first major proprietary large language model since forming its Superintelligence Labs division, marking a departure from the fully open-weight approach that defined the earlier Llama model series.
It launched in April 2026 as Meta's flagship model following a reported $14 billion investment and the hiring of prominent AI talent, including Alexandr Wang, to lead the new effort, with a Muse Spark 1.1 update following in July 2026.
Meta has continued to release open-weight models alongside its proprietary line, launching Muse Glimmer, an open-weight sibling model, in August 2026, so Meta's current lineup spans both proprietary and open-weight options.
- Made by
- Meta (Superintelligence Labs)
- Free plan
- Access is available through Meta AI's consumer products with usage limits
- Available on
- API (via cloud partners), Meta AI apps, Instagram, WhatsApp and Facebook integrations
Meta Muse Spark alternatives
Questions about Meta Muse Spark
Is Meta Muse Spark open source?
No, it's a proprietary model, marking a departure from Meta's earlier fully open-weight Llama series.
When did Meta Muse Spark launch?
It launched in April 2026, with a 1.1 update following in July 2026.
Does Meta still release open-weight models?
Yes, Meta released Muse Glimmer, an open-weight sibling model, in August 2026, alongside the proprietary Muse Spark line.
Sources and links
- Goodbye, Llama? Meta launches new proprietary AI model Muse Spark, VentureBeat
- Meta releases latest update of AI model Muse Spark 1.1, Fortune
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